Here is a fact that almost nobody outside the breeding world knows: health-tested purebred dogs are the most medically documented dog population on earth. Not roughly documented — documented in public, searchable databases, across decades, including the results nobody wanted.
If you learn to read that record, you can know more about a well-bred puppy’s health outlook before it is born than most people ever learn about their dog at all.
OFA — sixty years of receipts
The Orthopedic Foundation for Animals has been evaluating dogs since 1966 and has analyzed roughly 1.8 million hip and elbow radiographs, along with databases for hearts, eyes, patellas, thyroid, and more. When a breeder says a sire is “OFA Good,” that’s a specific, verifiable grade from a panel of board-certified radiologists — and you can look it up yourself, free, at ofa.org, by the dog’s registered name.
CHIC — the transparency machine
The Canine Health Information Center number is the single best credential in dog breeding, and here’s why: the test list is set by each breed’s own parent club — the people who know that breed’s real problems — and a dog only earns a CHIC number when every required screening is complete and the results are published regardless of outcome.
Read that again. Regardless of outcome. A breeder pursuing CHIC numbers has agreed, in advance, to publish bad news about their own dogs. Name another industry that does that voluntarily.
Embark and the genomic layer
DNA testing added a second layer to the record. Embark alone holds genetic profiles on some 2.5 million dogs, screening for over 270 genetic health conditions and reporting each dog’s coefficient of inbreeding (COI) — a measure of genetic diversity that good breeders now weigh directly in their pairing decisions. Between OFA’s phenotypes and the genomic databases, a careful breeder today is making decisions with information that simply didn’t exist a generation ago.
The honest part: what testing can and can’t do
This campaign doesn’t do spin, so here is the hard truth too. Purebred dogs, as closed populations, carry real genetic challenges — a landmark 2021 study of nearly 50,000 dogs found average inbreeding levels across breeds that demand to be taken seriously. Testing does not make those challenges vanish.
But the same research points the way through: breeds managed for function and health first can maintain excellent health even from small founding populations — the study’s healthiest examples were exactly that. The problem is not purebred dogs. The problem is breeding without information — and information is precisely what this infrastructure exists to provide. The answer to imperfect data has never been less data.
Compare the alternative. A dog of unknown parentage is a beloved mystery — and mystery is the kindest word for it: unknown parents, unknown COI, unknown everything, hoping for the best. A health-tested, well-bred dog is the opposite of that gamble.
How to use this as a buyer
- Ask the breeder which tests the parent club recommends for the breed. (They’ll know instantly. That’s the tell.)
- Ask for both parents’ registered names, and look them up on ofa.org yourself.
- Ask whether the breeding was planned with COI in mind — and listen for a real answer.
- Treat “our line is healthy, we don’t need to test” as what it is: the end of the conversation.
Transparency is the whole game. The good breeders built the most open health record in the animal world and put their own dogs’ failures in it, on purpose, so the next generation could be better. That deserves to be known.
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